CVE-2022-20594

Local privilege escalation via unchecked charger update

Published Dec 16, 2022 · Updated Apr 18, 2025

An out-of-bounds write in the Wireless Charger component of Google Pixel devices allows local users to escalate privileges. The updateStart function in WirelessCharger.cpp writes beyond a buffer because it processes input without the required bounds check. Exploitation requires existing System execution privileges and no user interaction, and successful abuse grants higher local privileges.

CVSS severity6.7
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds write in the Wireless Charger component of Google Pixel devices allows local users to escalate privileges. The updateStart function in WirelessCharger.cpp writes beyond a buffer because it processes input without the required bounds check. Exploitation requires existing System execution privileges and no user interaction, and successful abuse grants higher local privileges.

The record

CVE
CVE-2022-20594
Published
Dec 16, 2022
Updated
Apr 18, 2025
Vendor
Google
Product
Google Pixel
Classifications
CWE-787, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Dec 16, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Android kernel

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Google · Google Pixelversion=Android kernel

Published CVSS scores

6.7CISA-ADPCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.7NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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